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Dr. Mohamad Kassar, MD
NPI1063691830PAC ID3678553674
- Medicare services, 2024
- 422,092
- Medicare patients, 2024
- 1,225
- Part D claims, 2024
- 1,464
- Publications
- 3
- Clinical trials
- 10
- Practice address
- 1001 Calumet Ave, Dyer, IN 46311
- Practice phone
- Call (219) 924-8178
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwest Cancer Centers
Dyer, Indiana
Find Dr. Kassar's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mohamad Kassar is a hematologist and oncologist in Dyer, Indiana
Dr. Kassar practices at Northwest Cancer Centers in Dyer, Indiana.
Dr. Kassar's NPI, 1063691830, was assigned on October 30, 2007. Dr. Kassar holds Indiana license 01064684A.
NPI and contact details
- NPI
- 1063691830NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678553674
- NPI enumeration date
- October 30, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (219) 924-8178
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mohamad Kassar practices at Northwest Cancer Centers in Dyer, Indiana
Dr. Kassar's primary practice is Northwest Cancer Centers, at 1001 Calumet Ave, Dyer, IN 46311 in Lake County. The practice phone is (219) 924-8178.
- Northwest Cancer Centers1001 Calumet Ave, Dyer, IN 46311 · Lake CountyPhone(219) 924-8178
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mohamad Kassar is affiliated with 8 sites of care and 2 medical groups
Dr. Kassar's primary practice is Northwest Cancer Centers in Dyer, Indiana. Dr. Kassar is also affiliated with Franciscan Health Dyer. The medical group on file is Northwest Cancer Centers. Dmand AI also links Dr. Kassar to 5 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.
Northwest Cancer CentersPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mohamad Kassar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kassar practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwest Cancer Centers | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mohamad Kassar is one of 224 hematologists and oncologists in Indiana
Hematology and oncology is Dr. Kassar's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Kassar is licensed in Indiana.
Specialties and state licenses
- Hematology and oncology, IndianaPrimary
Hematologists and oncologists near Dr. Kassar
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
224hematologists and oncologists in Indiana
9hematologists and oncologists in Dyer
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mohamad Kassar billed Medicare for 422,092 services in 2024
CMS data shows 422,092 Medicare services from Dr. Kassar across 89 procedure codes in 2024, for 1,225 Medicare patients. Medicare paid $7,021,525 for them.
Medicare services, 2024422,092
Medicare patients1,225
Paid by Medicare$7M
Procedure codes89
Dr. Kassar's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 335,9082024: 333,0451%
- Lab and pathology
- 2023: 55,4702024: 60,6439%
- Other services
- 2023: 5,6372024: 11,14798%
- Tests and treatments
- 2023: 5,9732024: 6,4919%
- Office and hospital visits
- 2023: 5,2872024: 5,6437%
- Surgery
- 2023: 4,7442024: 5,1238%
Where Dr. Kassar's Medicare services took place, 2024
- In an office421,296100%
- In a facility7960%
Dr. Kassar compared with the Indiana median for hematologists and oncologists, 2024
- Dr. Kassar
- Indiana median
- Medicare services
- 422,092vs 760555.4 times
- Medicare patients
- 1,225vs 2644.6 times
- Part D claims
- 1,179vs 4232.8 times
Medians across 215 hematologists and oncologists in Indiana with Dmand AI profiles that report each measure.
Dr. Kassar's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kassar and other hematologists and oncologists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mohamad Kassar treated 1,225 Medicare patients in 2024, average age 75
CMS counts 1,225 Medicare patients who saw Dr. Kassar in 2024. The largest group is 65 to 74, with 513 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 9% are also on Medicaid. Their average risk score is 2.07, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Kassar's median patient age at 69, with 64% women.
Medicare patients, 20241,225
Average age75
Average risk score2.07
Also on Medicaid9%
Dr. Kassar's Medicare patients by age, 2024
Dr. Kassar's Medicare patients by sex, 2024
- Women74060%
- Men48540%
Chronic conditions among Dr. Kassar's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Cancer52%
- Ischemic heart disease40%
- Diabetes38%
- Chronic kidney disease32%
- COPD29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kassar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women64%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mohamad Kassar wrote 1,464 Medicare Part D claims in 2024
In 2024, Dr. Kassar wrote 1,464 Medicare Part D claims for 378 patients. 75% of them were for generic drugs. CMS names the drug for 1,179 of them, across 33 drugs with 11 or more claims each, at $4,448,910 in total drug cost. In 2023, CMS named 1,240 claims across 36 drugs.
Part D claims, 20241,464
Drugs named by CMS33
Total drug cost$4.4M
Part D patients378
Dr. Kassar's Part D claims by kind of drug, 2024
- Generic1,096 claims75%
- Brand-name and other368 claims25%
Dr. Kassar's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Kassar's Part D claims, 2024
- Opioids3%40 of 1,464 claims
- Antibiotics4%58 of 1,464 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,2402024: 1,1795%
Drugs named by CMS: 33 in 2024, 36 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Mohamad Kassar offers telehealth to Medicare patients
Dr. Kassar accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kassar as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mohamad Kassar has 3 publications on record
Dmand AI links 3 papers to Dr. Kassar, published from 2011 to 2020. Dr. Kassar's most frequent co-authors are Robert S. Alter, MD, Robert A. Bayer, MD and Long Hoang Dang, MD, PhD.
Papers3
Years published2011 to 2020
Dr. Kassar's papers by year, 2011 to 2020
Dr. Kassar's most frequent co-authors
- Robert S. Alter, MD1 shared paper
- Robert A. Bayer, MD1 shared paper
- Long Hoang Dang, MD, PhD1 shared paper
Recent publications by Dr. Kassar
See who Dr. Kassar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kassar works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mohamad Kassar has worked on 10 clinical trials
Dmand AI links Dr. Kassar to 10 clinical trials, 7 of them phase 3 studies. 9 are still active or recruiting. Conditions studied include Breast Neoplasms, Carcinoma, Non-Small-Cell Lung and Carcinoma, Bronchogenic. Alliance for Clinical Trials in Oncology sponsors the most, 3.
Conditions in Dr. Kassar's trials
- Breast Neoplasms
- Carcinoma, Non-Small-Cell Lung
- Carcinoma, Bronchogenic
- Breast Diseases
- Breast Neoplasms, Male
Investigators on the most trials with Dr. Kassar
- Kisa E. Weeman, MD7 shared trials
- Aldemar Montero, MD6 shared trials
- Chandler H. Park, MD, MS6 shared trials
Recent clinical trials with Dr. Kassar
Testing for Atypia in Random Periareolar Fine Needle Aspiration (RPFNA) Cytology After 12 Months Metformin (1, 1-Dimethylbiguanide Hydrochloride) Chemoprevention Versus Placebo Control in Premenopausal Women (opens in a new tab)
Active, not recruitingPhase 3
Carcinoma, Intraductal, NoninfiltratingBreast Carcinoma In SituMetformin hydrochloride
Breast NeoplasmsBreast Diseases
Breast Cancer WEight Loss Study (BWEL Study) (opens in a new tab)
Active, not recruitingPhase 3
Breast NeoplasmsBreast Diseases
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Mohamad Kassar received $37,883 in industry payments from 2016 to 2025
CMS Open Payments shows 962 general payments to Dr. Kassar from 77 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 45% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $6,590.
General payments to Dr. Kassar by program year, 2016 to 2025
General payments to Dr. Kassar by kind, 2016 to 2025
$37.9Kin total
- Food and beverage$17,19945%
- Consulting fees$17,11545%
- Travel and lodging$1,5844%
- Speaker and faculty fees$1,2503%
- Education$7352%
Companies that paid Dr. Kassar the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mohamad Kassar's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mohamad Kassar
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mohamad Kassar's NPI number?
Dr. Mohamad Kassar's NPI number is 1063691830. It was assigned on October 30, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mohamad Kassar?
Dr. Mohamad Kassar is a hematologist and oncologist in Dyer, Indiana. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Mohamad Kassar practice?
Dr. Kassar practices at 1001 Calumet Ave, Dyer, IN 46311. Dr. Kassar's primary practice is Northwest Cancer Centers in Dyer, Indiana. Dmand AI also links Dr. Kassar to 5 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Mohamad Kassar's office phone number?
The practice phone on file for Dr. Kassar is (219) 924-8178.
What is Dr. Mohamad Kassar's medical license number?
Dr. Kassar holds Indiana license 01064684A.
Which hospitals is Dr. Mohamad Kassar affiliated with?
Dr. Kassar is affiliated with Franciscan Health Dyer. Dmand AI links Dr. Kassar to 5 more hospitals.
What medical group is Dr. Mohamad Kassar part of?
Dr. Kassar is linked to Northwest Cancer Centers. Dmand AI links Dr. Kassar to 1 more medical group.
Does Dr. Mohamad Kassar accept Medicare?
Yes. CMS data shows Dr. Kassar billed Medicare for 422,092 services in 2024, and Dr. Kassar accepts Medicare assignment.
Does Dr. Mohamad Kassar offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Kassar as offering telehealth services.
How many Medicare patients does Dr. Mohamad Kassar see?
CMS counts 1,225 Medicare patients who saw Dr. Kassar in 2024, with an average age of 75.
Show 6 more questionsShow fewer questions
What services does Dr. Mohamad Kassar bill to Medicare?
In 2024, Dr. Kassar's most billed Medicare services were injected or infused drug (J9025), injected or infused drug (J9299) and injected or infused drug (J0185).
What drugs does Dr. Mohamad Kassar prescribe most?
In 2024 Medicare Part D data, Dr. Kassar's most prescribed drugs by claims were Anastrozole, Revlimid and Prednisone.
Has Dr. Mohamad Kassar received payments from drug or device companies?
CMS Open Payments shows $37,883 in general payments to Dr. Kassar from 77 companies from 2016 to 2025. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
How long has Dr. Mohamad Kassar been practicing?
Dr. Kassar graduated from medical school in 1999, 27 years ago.
Does Dr. Mohamad Kassar do research?
Dmand AI links 3 publications to Dr. Kassar, published from 2011 to 2020. Dr. Kassar has worked on 10 clinical trials.
Who does Dr. Mohamad Kassar publish with?
Dr. Kassar's most frequent co-authors are Robert S. Alter, MD (1 shared paper), Robert A. Bayer, MD (1 shared paper) and Long Hoang Dang, MD, PhD (1 shared paper).
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